How to add the variables in MIB files in the linux?

Question

Basically, I have added one variable called "sysFirst" (as shown in the below picture)in the available "RFC1213-MIB.txt" file. After addition of the variable I have validated also using command

smilint -l 6 -i namelength-32 ./RFC1213-MIB.txt

So I got the following result

root@pdu:/usr/share/snmp/mibs# smilint -l 6 -i namelength-32 ./RFC1213-MIB.txt
./RFC1213-MIB.txt:15: warning: redefinition of identifier `SNMPv2-SMI::mib-2'
/usr/share/mibs/ietf/SNMPv2-SMI:13: info: previous definition of `mib-2'
./RFC1213-MIB.txt:19: warning: redefinition of identifier `SNMPv2-TC::DisplayString'
/usr/share/mibs/ietf/SNMPv2-TC:53: info: previous definition of `DisplayString'
./RFC1213-MIB.txt:28: warning: redefinition of identifier `SNMPv2-TC::PhysAddress'
/usr/share/mibs/ietf/SNMPv2-TC:87: info: previous definition of `PhysAddress'
./RFC1213-MIB.txt:56: warning: redefinition of identifier `SNMPv2-SMI::transmission'
/usr/share/mibs/ietf/SNMPv2-SMI:14: info: previous definition of `transmission'
./RFC1213-MIB.txt:268: index element `ifIndex' of row `ifEntry' must have a range restriction
./RFC1213-MIB.txt:616: index element `atIfIndex' of row `atEntry' must have a range restriction
./RFC1213-MIB.txt:1308: index element `ipNetToMediaIfIndex' of row `ipNetToMediaEntry' must have a range restriction
./RFC1213-MIB.txt:19: warning: type `DisplayString' has no format specification
./RFC1213-MIB.txt:28: warning: type `PhysAddress' has no format specification

Then after restarting the SNMP daemon I observed it not reflecting in the MIB browser as shown in the below image,

What will be the reason for not reflecting the variable in the MIB browser? Any help will be really appreciated.

Answer 1

Whatever MIB files we will make the same we need to add them to the MIB browser by using the load mib browser option normally we can find the same in the file option from the menu bar.

After adding the same we can use all the SNMP commands from any device which consists of the MIB Browser.